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The MDII Series digital motor speed controls, employing an advanced 16-bit microprocessor, is designed for digital closed loop operation of up to 2 horsepower DC permanent magnet motors. This control features a true P-I-D algorithm, for extremely responsive and precise control over a wide variety of desired speeds and applications. The MDII Series is designed as a companion or direct replacement control to the MD Series, while offering significantly improved performance. Set or actual speed is displayed directly in RPM, FPM, PROCESS TIME, or other engineering units. Field programming permits customizing specific operating parameters. The integrated RS485/RS422/RS232 serial interface port is perfect for monitoring or control using almost any computer or process controller. Units can even be attached in a Local Area Network, and can then be controlled and programmed either individually or all at once. Multiple programs allow the user to choose between a “menu” of up to six programmed configurations. The MDII series is the ultimate answer for precise, responsive, cost-effective and flexible closed loop motor speed control.
| MODEL NUMBER | STYLE | INPUT (VAC) | OUT (VDC) | HP RANGE | FEATURES |
|---|---|---|---|---|---|
| MD20P | 1/8 DIN PANEL MOUNT | 120/240 | 0-90/180 | 1/50-1/2 (90V) 1/8-1 (180V) | > Microprocessor based; user configurable > Displays actual or set speed directly in rate or time > P-I-D digital closed loop control > Accuracy ±1/2 RPM of set speed > Master/Follower operation > Variety of pick-up inputs; Hall-Effect, Photoelectric, or any TTL > Non-volatile memory retains programmed parameters > Internal A/D permits using potentiometer in Manual mode > Inhibit circuit permits start and stop without breaking AC lines > Up/down pushbuttons for set points and programming > Programming lockout prevents accidental changes > Transient voltage protection > User defined outputs for alarms, motor not running and more > Memory supports up to six (6) user configurations |
| MD30P | 1/4 DIN PANEL MOUNT | 120/240 | 0-90/180 | 1/4-1 (90V) 1/4-2 (180V) |
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| MD30E | NEMA 4 SURFACE MOUNT | 120/240 | 0-90/180 | 1/4-1 (90V) 1/4-2 (180V) |
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These closed loop devices require an encoder / speed pick-up. The Dart PU-E is an excellent choice!
